Home / 5,412.79-8,119.48-1,714.74

Finding the Fourth Proportional to 5,412.79, 8,119.48 and 1,714.74

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Solution

The fourth proportional to 5,412.79, 8,119.48 and 1,714.74 is: 2,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.79 : 8,119.48 = 1,714.74 : x
  2. Step 2: Convert to fraction form
    5,412.79/8,119.48 = 1,714.74/x
  3. Step 3: Cross multiply
    5,412.79x = 8,119.48 × 1,714.74
  4. Step 4: Simplify right side
    5,412.79x = 13,922,811.29
  5. Step 5: Solve for x
    x = 13,922,811.29/5,412.79
  6. Step 6: Final answer
    x = 2,572.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.